body,html
 line-height:1
  font-weight:200
   font-family:'PingFang SC','STHeitiSC-Light','Helvetica-Light',Arial,sans-serif

.clearfix
   display: inline-block
   &:after
      display: block
      content: "."
      height: 0
      line-height: 0
      clear: both
      visibility: hidden

@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5)
  .border-1px
    &:: after
      -webkit-transform: scaleY(0.7)
      transform: scaleY(0.7)

@media (-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2)
  .border-1px
    &:: after
      -webkit-transform: scaleY(0.5)
      transform: scaleY(0.5)

